Greetings friend @the-gorilla.
As always, you have brought a good topic to discuss or rather to debate. Personally, I have always had the experience of sharing with various groups in my college and university life, so I understand very well that we will not find anything alike anywhere, for my part, I spent enough time to share with good students "I am one of them" that we strived to understand each topic, each class received, but I also shared some moments with students who did not pay attention to the classes and were only there to annoy. What I want to say is that, we will always find different personalities, whether good or bad, it will not hurt us to walk among each one of them.
We will always learn something from someone, even if it is from their mistakes.
Very true - it's also natural that we gravitate towards people who share our world view... people who think similarly to us and who share our values and perspectives (perhaps why those who are being introduced follow the same approach as the introducer).
Disagreement and listening to "opposing" perspectives is a healthy part of life and gaining consensus from opposing views will always lead to better outcomes, but seeking that opposition... looking for people who see things differently is almost unnatural in today's society and demands a level of energy and patience that few of us possess.